Pump cassette



FIG. 1 is a top, front perspective view of a pump cassette, showing our new design;

FIG. 2 is a bottom, rear perspective view of the pump cassette of FIG. 1;

FIG. 3 is a top plan view of the pump cassette of FIG. 1;

FIG. 4 is a front elevational view of the pump cassette of FIG. 1;

FIG. 5 is a left end elevational view of the pump cassette of FIG. 1;

FIG. 6 is a rear elevational view of the pump cassette of FIG. 1;

FIG. 7 is a right end elevational view of the pump cassette of FIG. 1; and,

FIG. 8 is a bottom plan view of the pump cassette of FIG. 1. 

The ornamental design for a pump cassette, as shown and described. 